Sash-lock.



L. E. DE NBERGAARD.

SASH LOGK. APPLxcATIoN rum Humo, 1912.

Patented Sept. 2, 1913.

INVENTOR Lewis Ebner de Maergnard TTTED STATES PATEN T FFTCE?.

LEWIS ELMER DE NEERG-AAR-D, OF PORT CHESTER, NEW YORK, ASSIGNOR, BYMESNE ASSIGNMENTS, TO TECHNOLOGY SALES CO., INC., OF NEW YORK, N. Y.

SASH-LOCK.

Specification of Letters Patent.

Patented Sept. 2, 1911.3.

Application led February 10, 1912. Serial No. 676,916.

To all whom it may concern Be it known that I, Lnwis Emma DnNifinnoaann, a citizen of the United States, residing' in the city ofPort Chester', county of Westchester, and State of New York, haveinvented certain new and useful Improvements in SasliLocl s, of whichthe fol lowing is a full, clear, and exact description, referencebeinghad to the accompanying' drawings, forming` part of thisspecification.7

This invention relates to improvements in sash locks, and particularlyto that class of sash locks comprising` two members slidahly connectedto each other adapted to clamp the device between the outer sash and theframe molding of a window so as to secure the sashes in position; andits main object is to provide a sash lock of the kind mentioned havingmeans for fastening,` the same to the inner sash of a window in order toprevent its removal.

A further object of this invention is to provide a sash lock of animproved and novel construction, attractive in design, and having simpleand inexpensive operating means capable of ciliectuall'y locking the device in position.

A still further object is to provide an improved sash lock comprisingtwo oppositely moving members slidably connected t'o each other, capableof clamping the device between the frame molding and the outer sash of awindow, having` means for attaching,r the same to the inner' sash insuch a manner as to allow a free operation of the two moving' parts.

Another object of this invention is to provide a sash lock comprising`two oppositely moving' member.; adapted to clamp the device between theframe molding' and the outer' sash of a window, having sei-rations intwo opposite senses effectively locking the sash against .movement inboth direc tions.

A still additional object of this invention is to provide in a sash lockof the kind mentioned, simple and inexpensive means for adjusting` thedevice to any size window.

l/Vith these and other objects in view such as will more fully appear asthe description proceeds, this invention consists in certainctmstrnctions and arrangements of parts such as will be hereinafterfully described and claimed in the appended claims.

Sash locks having means for clamping the outer sash of a window againstthe .frame moldingl have been heretofore made, the main object of thesedevices being to insure a window from being opened from the outside; forthis re: son they are generally called safety locks. One inconveniencethat I have however noted in some of said devices, is that no means areprovided for securing the same to any part of the window. Anotherinconvenience which .I have noticed in sash locks is that the same aregenerally operated by a separate key which may be easily lost ormisplaced. Moreover, I have noted that such devices are usually providedwith st n'ratons in one sense only which do eltcctnally prevent: themotion of the sash in one direction, but which do not give the samesafety against movement of the sash iin an opposite direction. A deviceof this kind must necessarily be strongl o1' in other words exert.strong clampinaction against the sash, especially when the same is usedfor safety purposes; and in the devices which have come to my knowledge7such clamping' action is exerted by means of an adjusting' screw mountedon one of the members and controlling` the other member. TVhile theclamping action due to the screw is usually very effective, theappearance of the device is rather unsightly and the cost ot' the sameis necessarily higher than that of correspondintt)y devices7 in, whichsheet metal parts produced by means of dies are employed.

My improved device may be made entirely of sheet metal and in thedrawings il have shown several forms in which the same may be made.

ReferringI to said drawimrs` l `ifnre Il is a 9 front view in elevationof my improved device made adj ustable to any size window; Fig'. 2 is aside sectional view in elevation of the same; Fig. 3 is a plan sectionalview of the same; 111g. ll is a detail side view -in elevation of theclamping surface adapted to rest against the outer sash ot' a window;Fig'. 5 is a side view in elevation showing' the serrated l'langeadapted to rest against the frame molding; Fin'. G is a front view inelevation of the bearing' member used in the device shown in Fig. l;Fig. is a front view in elevation on a smaller scale of the adjustablemember used in the same; n te'. 8 is a front view in elevation of a cnnshaped vice shown in Fig. 1;

Qi Y '1,072,099

member having outwardly directed flanges attached to the operatingmember of the deof the same; Fig. 10 is a front view in elevation ofthe. locking member' used in the device shown in Fig. 1; Fig. 11 is aside view in elevation of the same; Fig. 12 is a plan view of the same;Fig. 13 is a front view in elevation of a simplified form which may beassumed by my device; Fig. 14 is a sioe sectional view in elevation ofthe same; Fig. 15 is a front view in elevation of a device havingdifferent clamping means rendered adapted to be attached to the innersash of a window, according to one of the details of my invention; Fig.16 is a plan sectional view of the same; Fig. 17 is a plan view of a keyor wrench which may be used in connection with the operating membershown in full lines in Fig. 1; Fig. 1S is a side view of the same; Fig.19 is a front view in elevation of a device similar to that illustratedin Fig. 13, fitted with only one serrated flange resting against theouter sash of a window; and Fig. 20 is a plan sectional view of thesame.

My device is essentially composed of a bearing member 21 to which isslidably connected an adjustable member 22, controlled by an operatingmember 23 mounted on said bearing member 21. Part 22 may be slidablyconnected to part 21 in any convenient manner, and the drawings show apreferred form of construction in which part 22 is retained by part 21by means of an upper flange 24 and lower flanges 25, 2G bent over thesame.

Bearing member 21 is provided with a flange 27 adapted to rest againstthe frame molding of a window, and adjustable member 22 is provided witha narrower liange 28 adapted to rest against the outer sash. Saidflanges are provided with serrations 29, 30, in opposite senses, adaptedto lock the device in opposite directions and to prevent the moving ofthe sash both up and down. One of the said slidable members andpreferably the inner member or bearing member 21, is provided with aright angle lug or projection 31, having a longitudinal elongated slot32; said slot is used for the passage of a screw 33 retaining the deviceattached to the inner sash of a window. The drawings show lug orprojection 31 at the lower part of the device, the same being intendedfor the usual style of window in which the inner sash normally occupiesthe lower section of the same; by means of lug or propection 31, thedevice can therefore be attached to the top rail of said inner sash, asillustrated in Fig. 1.

The opening for the passage of the screw is preferably made elongated asshown, to allow the device to be slightly moved by hand when releasedfrom its clamping posi- Fig. 9 is a plan viewk tion, so as to detachboth flanges from the respective surfaces formerly clamped and to permitthe free motion of the window sashes. Screw' 33 can be provided with ashoulder a certain depth, and preventing the head of the same 35 fromclamping projection 31'; the distance between shoulder 34 and the lowerface of head 35 willbe a trifle more than the thickness of said lug orprojection 31, allowing the same to be moved by hand, but at the sametime retaining the same in position. 'n l To effect the locking` of thedevices, I provide a cam-slotted member 23 having a slot 36, and pivotedat 37 to bearing member 21. Adjustable member 22 is provided with aprojecting pin 33 passing through said slot; and it can be easily seenthat by turning member 23 around pivot- 37, slot 36 acting on pin 38will cause adjustable member 22 to move in or out in relation to bearingmember 21.

1n Fig. 1, the device is shown in its eX-y tended position; by turningmember 23 to the left, member 22 will be moved inward and the clampingaction of the devieerreleased. By properly shaping slot 3G the grip ofthis lock can be caused to be most powerful, and quite sufficient forall the re- Y Member 23 quirements of such a device.

attached can be operated by means of an handle. as shown in dotted linesin FiO'. 1`

by numeral 39, Or else may a detached Yhandle of any suitabledescription. Y Such a construction is also shown in full lines in Fig. 1in which member 23 is formed in the shape of a disk provided withnotches 40, into which can be inserted prongs 4.11 of an operating keyl2 represented in Figs. 17, 1S. As hereinbefore and designated beoperated by stated, it is most important that a device of this kind befitted with retaining means to prevent its easy removal. While theslotted z rio y lug or projection 31 described serves its purpose quitewell, and while the device can lock the window sashes in any position,the relative motion which may take place between the lower sash and thedevice due to the elongated form of slot 32, does not eilicientlyprevent the lower sash when the wind is blowing. have found that in sucha device it is very desirable that means be alsoprovided for preventingthe rattling of the window, this constituting an at ditional advantageand removing the cause of much annoyance.

1n Fig. 5, I show a way of attaching the device, also preventing therattling of the lower sash due to the wind when the device is in itsclamping position. To this end the device is attached to the lower sashby means of a screw 43 having a threaded projecting portion all: and alocking nut 45. Said nut t5 can 3a allowing the same to go only yto fromrattling` be operated by hand and by tightening the same when the devicehas been clamped in position, the lower sash will also be effectivelylocked to said device and any motion of the same prevented. In a sashlock of moderate dimensions, such as would be adapted for this kind ofan article, the adjustment due to a slot of the shape shown in thefigures cannot be very high if the lock is expected to exert a strongclamping action; and therefore when it is desired to have a device whichshall be adaptable for every size window, it will be necessary t0provide an extension adjustment, one form of which is also illustratedin connection with Figs. 1, 2, and 3, and the details of which arefurther illustrated in Figs. G, 7, 8, 9, 10, 11 and 12. This extensionconsists, briefly, of means for fixing' pivot 37 on bearing member 21 atdifferent points, the motion of part 22 due to slot 36 remaining` thesame in all cases.

lVhen my device is provided with my improved extension adjustment, part21 is formed with a central longitudinal slot 4G, and pivot 37 isriveted or otherwise fixed to a cup shaped member 47 having outwardlydirected flanges 48, 49, 50, 51, the height of which is equal to theheight of slot 4G, and which is therefore slidable therein. The depth ofcup shaped member 47 is such that when the different parts are assembledtogether, a free space is left between flanges 4S, 49, 50, 51, and therear surface of member 21, su'tlicient for the passage of the lockingmember 52 represented in detail in Figs. 10, 11 and 12. Said lockingmember 52 is provided with lugs 53 projecting from its face and adaptedto enter slots 54 provided at various points in member 21. Said lockingmember' 52 is notched so as to conform to the outline of member 47; thesame can be placed against the rear surface of part 2l, lugs 53 enteringthe respective slots 54, in such a manner that the inward projections 55of said locking member will pass through free spaces 5G, 57,respectively between flanges 4S, 49, and flanges 50, 51. Slots 54 aremuch longer than lugs and allow the up and down mot-ion of lockingmember 52; thereit'ore when locking member 52 has been placed againstthe rear surface of part 21, the same is pushed downwardly so that lugs55 will interlock with flanges 49, 51, and lugs 58 will interlock withflanges 48, 50. In this manner locking` member 52 will be retainedagainst the rear surface of part 21 by said flanges, while on the otherhand, lugs 53 being inserted through slots 54, said locking member 52will prevent any longitudinal motion of member 47 and will consequentlyfix in position pivot 37. By properly selecting the slots into whichlugs are inserted, pivot 37 can be fixed at the desired point to conformwith the sides of the window for which the device is intended.

To effectively lock member 47 by meansof member 52, l prefer to make thesize of part 47 taper, and accordingly to make taper the sides of thenotch registering therewith pro vided in locking member 52. This willwedge itself in position and maintain the devices assembled in a moreeffective way. This type of adjustable locking mechanism is particularlyadvantageous for the present purposes.

Figs. 13 and 14 represent a simplified form of my device in which 59 isan adjusting member, (3() an adjustable member, (31 is a cam-actingmember provided with a slot (32 and an operating handle (S-l, and (i4 isa pivot for the same mounted on member 59. The range of adjustment ofthis lock is limited to the amount obtainable by means of the slot, butin manufacturing the same, pivot (34 can be mounted or riveted on member59 at suitably different points, so that by using the same parts locksadapted for use in different size windows can be made simply byassen'ibling them in different relative positions. ln Fig. 13, (55represents a hole which can be produced in part 59 in order to rivetpivot (i4 in the same, instead of being riveted in the position shown,in order to produce a smaller size lock. A lock thus assembled is onlysuitable for the size of window for which the same has been designed,but its lower cost of manufacture makes the same well adapted forgeneral use.

ln Figs. 19 and 20, I illustrate .i lock quite similar in constructionto that shown in Figs. 13 and 14, but the bearingl member of which GG,has no clamping flange, and in which adjustable member (37 only isfitted with a serrated flange (3S exerting a clamping action against theouter sash of the window to which t-he device is applied. Bearing memberGG is fixed to the inner sash by means of a screw or screws G9, insertedthrough the lug or projection 70. lVhen this style of lock is properlyproportioned and sutlieiently strong, its action quite effective both ininsuring the safety of a window and in preai'enting the rattling of thesame, because while llange (i8 pushes the outer sash against the outerframe molding', the inner sash will be pushed by the retaining screw orscrews against the inner frame n'iolding; thc locking of the window willin other words be ell'ected by forcing the two sashes apart. lt may benoted however, that if proper care is exerted in placing the devicetilted with a lock with an elongated slot, such as illustrated inl1`igs. 3 and 1G, the same can also effectively prew vent the rattlingof the inner sash without the necessity of any additional locking nut,such as shown in Fig. 5. ln fact, it will be sufficient to first extendthe device in its clamping position and then to drive the repossible tothe end taining screw vthrough the slot `as near as of said slot whichremains toward the outer sash.; the end of said slot therefore by actingagainst the retaining' die produced sheet metal parts; and I also haveavoided as much as possible the use of parts projecting from the surfaceof the device Awhich would render the same, less attractive in designand appearance. j

The slotted member controlling toe sliding `relative motion of the twoparts of which my device is composed, can be made with a detached handleor with a handle integral therewith as desired; and the slot provided inthe -samemay loe-.caused -to follow any suitable curve which will fulfilthe requirements of `the device.

lt is to be understood be .modified in its various substantiallydeparting from that my device can details without the spiritoi myinvention and l reserve myself the rightv to the same all those changesand modifications which may be rendered necessary yor useful, to meetSpecial requirements of individual cases, zand which fairly enterintothe scope of the appended claims.

Having thus described and ascertained the nature of my invention what Iclaim as new and desire to secure by Letters Patent of the United Statesis:

l. ln a sash lock, the combination of two plates slid ably connected toeach other having serrated flanges, means for yoperating the same, and alug projecting from one of the said plates for movably attaching thedevice to the inner sash :of a window; for the purposes as set forth.

2. in a sash lock, the combination of two plates slidably connected toeach other having serrated flanges, means for operating the same, and anattaching lug inte-gral with one of the said plates having an elongatedslot; izo-r the purposes a-s set forth.

.3. ln a sash lock, the combination of a bearing plate, an adjustableplate slidably connected thereto, a cam-acting member pivotally eratingsaid adjustable plate, and means depending from one j-ustably securingthe same to the innersash of the window to which the device is applied.

Ll. In a sash lock the combination of a bearing plate, an adjust-ableplate slidably connected thereto, flang'esintegral with Vsaid platesprovided with oppositely engaging serrations, a cam-acting memberpivotally of bringing connected to said Vbearing plate op-` of the saidplates for adconnected to saidbearing plate operating said 'adjustable'plate, and means depending from vone of the said plates yfor securingthe same to the inner sash of the window to which the dev-ice .isapplied. Y

ina sash lock, the combination of a bearing plate, an adjustable platemounted upon and slidabl! vconnected thereto, flanges integral with saidplatesprovided with. oppositely lengaging" serrations,a .slottedcamacting member pivotally connected to said bea-ring plate, a memberprojecting from the surf-ace of said adjustable plate through saidslotted cam-acting member and controlled `thereby fc-roperating said.plate, and an .attaching lug integral with .one of the said plates,having an elongated slot; for the purposes as set forth. y

6. ln a sash lock, in combination with a beari-n-g member, .anadjustable member slidably connected thereto, ,and .means for operatingthe same, means for securing said operating means 'on said bearingmember at different .point-s comprising an element hav-ing outwardlydirected flanges projecting through said 'bearing member, and a lockingelement .inserted between said flanges .and said bearing member,interlocking with said member; for the purposes as set forth. q Y y Y 7.ln a sash lock, the Acombination of 'a bearing .plate :provided with a'longitudinal slot and with :a plurality of transverse positioningslots, an adjustable plate slidably connected thereto, serra-tedvflanges integral with said plates, an element having outwardly directedia-nges projecting through said longitudinal slot, .a cam-acting memberpivotally connected to said element l0perating said adjustable plate,and a locking element 4inserted between said yflanges and bearing plate,having lug-s projecting through said positioning slots; for the purposesas set forth.

8. n a 'sash lock, the combination ot a bearing plate, provided with alongitudinal slo-t and with a plurality of transverse positisoningconnected thereto, serrated flanges integral with said plates,loperating means for said plates, an element means projecting throughsaid longitudinal slot having outwardly directed flanges and taperingsides', .and a locking ele-ment inserted between `said flanges and saidbearing plate, having lugs projecting through Vsaid positioning slots,andjprovided with a slot having correspondingly tapering sides.

9. ln a sasl loclr, the combination of a bearing vplate provided with alongitudinal slot and with a plurality .ot .transverse positioningslots, an adjustable plate slidably connectedthereto, flanges integralwit-h said plates having oppositely engaging serratlons, an elementprojecting through said slots, an adjustable plate slidably .carryingsaid operating Vlelilgtudnal slot having outwardly directed Ilanges, aslotted earn-acting' member pivorally mounted on the same, a .memberprojecting from the surface of said adjustable plate tl'ueug'h saidslotted cam-acting mem ber and controlled thereby, a lug integral withone of the said plates having an eleng'ated slet, and a locking memberinserted between said flanges and said bearing.;4 plate, having lugsprojecting' through said pos- 10 tening slots; substantially asdescribed, and for ihe purposes as set forth.

LEWIS ELMER DE NEERGAARD. Witnesses:

ANNA Annnorr, S1 GM UN n NEWMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

